The enigmatic Hallgrim Hallgrimsson is on his way to Iceland to see his sick mother when he is called back because a policeman has been killed at Copenhagen airport. Four murders and a daring rescue later detective Hallgrim Hallgrimsson, AKA The Eagle, accepts a position in the police commissioner's new team so he can work on solving the case.

Hallgrim is still in hot pursuit of ex-KGB man Sergei Varsjinskij and Luka Ivanovitsj Budanov; a new face joins the team while the relationship between Marie and Hallgrim heats up.

A wealthy Norwegian businesswoman is found dead outside Hallgrim’s hotel and the team is led once more to Sergei Varsjinskij and an intricate money-laundering scheme.

When the police seize a consignment of enriched uranium, Hallgrim makes a deal with Sergei in order to discover its planned destination. Meanwhile, Frandsen's life hangs in the balance as he is checked for radiation sickness.

In trying to find the truth about a batch of uranium that was seized by the Danish police, Hallgrim befriends a Chechen scientist in Oslo who has a sinister mission in life.